Аннотация:Youth bulge is a globally important phenomenon itself engendered by globalprocesses, such as global demographic transition and global modernization ingeneral. However, youth bulge manifested itself at different times and scale invarious regions and countries of the world. In the paper, the historical developmentand certain aspects of current age structure of ten Latin American countries areanalyzed. Main focus is put on the phenomenon of the «youth bulge». Somemethodological approaches to this phenomenon are compared, and its risks for acountry's sociopolitical stability are revealed. We then proceed to apply thesevarious approaches to reveal possible «youth bulges» in the recent past, current state,and their demographic future as forecasted by UN Population Division. We go deepinto the 19th-century for the social and demographic history of certain LatinAmerican countries in order to reveal the roots of their differences from othercountries. We reveal two main “waves” of Latin American countries going throughyouth bulges and cases of political instability taking place at the time of these bulges.We also reveal one country, which has been experiencing such a bulge only veryrecently (due to a delayed fertility transition) and is still under the high risk ofsociopolitical instability.